鋰電池組設計-原理和基礎簡介
關于鋰(li)電池組設(she)計,下面將(jiang)會簡單說(shuo)明下。
鋰電池是(shi)由(you)陰(yin)極(ji)(ji)(ji)和陽(yang)極(ji)(ji)(ji)組(zu)成(cheng),分離(li)并通過電(dian)(dian)解質(zhi)連接。電(dian)(dian)解質(zhi)傳導離(li)子(zi)但是(shi)電(dian)(dian)子(zi)的絕(jue)緣體。在(zai)充電(dian)(dian)狀態下,陽(yang)極(ji)(ji)(ji)含有(you)(you)高濃度(du)的嵌(qian)入鋰,而陰(yin)極(ji)(ji)(ji)含有(you)(you)鋰。在(zai)放電(dian)(dian)期間(jian),鋰離(li)子(zi)離(li)開陽(yang)極(ji)(ji)(ji)并通過電(dian)(dian)解質(zhi)遷移到陰(yin)極(ji)(ji)(ji),而其相關(guan)的電(dian)(dian)子(zi)被(bei)集(ji)電(dian)(dian)器收集(ji)以用于為(wei)電(dian)(dian)氣裝置(zhi)供(gong)電(dian)(dian)。模塊和電(dian)(dian)池中的單(dan)元設計和組(zu)合差(cha)別(bie)很大。
鋰電(dian)(dian)(dian)池(chi)中的電(dian)(dian)(dian)極始(shi)終是(shi)固體(ti)材料。可(ke)以根據(ju)它們的電(dian)(dian)(dian)解質(zhi)區分(fen)離子類型(xing),所述電(dian)(dian)(dian)解質(zhi)可(ke)以是(shi)液體(ti),凝(ning)(ning)膠或(huo)固態組分(fen)。凝(ning)(ning)膠和固態電(dian)(dian)(dian)池(chi)中的電(dian)(dian)(dian)解質(zhi)代表結構部(bu)件,并(bing)且(qie)不需要額(e)外(wai)的保(bao)護板來有效地分(fen)離電(dian)(dian)(dian)極和避免短(duan)路(lu)。形(xing)狀可(ke)以是(shi)圓柱形(xing)和棱柱形(xing)。對于(yu)諸如(ru)運輸或(huo)固定(ding)存儲的高(gao)能(neng)量和高(gao)功率應用,許多電(dian)(dian)(dian)池(chi)被封裝在模(mo)塊中。
特殊電池類別的(de)(de)是固態薄(bo)膜電池。薄(bo)膜電池僅(jin)(jin)由固體(ti)材料組(zu)成。電解(jie)質是固態離(li)子玻(bo)璃或(huo)晶(jing)體(ti),并且通過氣(qi)相沉積(ji)技術(shu)沉積(ji)組(zu)分。該(gai)設計提供最(zui)高的(de)(de)能量密度,安(an)全(quan)性和濫用容差,但(dan)它僅(jin)(jin)適用于特殊應用的(de)(de)小型(xing)設備,并且涉及最(zui)昂(ang)貴的(de)(de)生產方法。






